Combination sawing and abrading machine



Aug. 28, 1956 E. R, BALE COMBINATION SAWING AND ABRADING MACHINE 3 Sheets-Sheet 1 Filed Oct. 5, 1 954 INVENTOR. EA 2L 2 5/! L 5 F/GZ Au 28, 1956 E. R. BALE 2,760,532

COMBINATION SAWING AND ABRADING MACHINE Filed Oct. 5, 1954 3 Sheets-Sheet 2 INVENTOR. EAZL 2. BALE F/ G. 4 BY Aug. 28, 1956 E. R. BALE 2,760,532

COMBINATION SAWING AND ABRADING MACHINE Filed Oct. 5, 1954 3 Sheets-Sheet 3 H] E Q 5 54* i Z ,45 1 I {Z k\\\\ \l! |lk\\\\ INVENTOR. 9 EAQL ,2. BALE United States Patent COMBINATION SAWING ABRADING MACHINE Earl R. Bale, Roanoke, Va.

Application October 5, 1954, Serial No; 460,313 3 Claims. (Cl. 144-3) The present invention relates to 'wood working, machines generally, and s ecifically to a machine for sowin off an excess portion of a dowel pin projecting from a piece of furniture and for sanding or polishing the piece where the dowel pin has been removed in a single operation.

The rinci al object of the present invention is to rovide a new and useful tool forperforrning in a single operation the removal of the excess end of a dowel pin projecting through the bed post secured to the backside of a foot board of a bed stead and sending the post to a smooth finish. v

Another object of the present invention is to provide a table type of wood working machine which is extehdable between two positions to accommodate a foot board of either a single bed or a double bed.

A till further object of the present invention is to provide a table type of wood workingniachine to be used in a production line operation in the manufacture of bed steads, and one in which a foot board of the bed steads is pushed in from the front end of the machine and taken out of the rear end of the machine and has had its projecting dowel pins trimmed and the bed post on the foot board sanded.

These and other objects of the present invention will be fully apparent from the following description when taken in connection with the annexed drawings, in which:

Figure 1 is a view in perspective of the machine of the present invention shown with its rear or back end adjacent to a conveyor indicated in dotted lines;

Figure 2 is a front view in elevation on line 22 of Figure 1;

Figure 3 is a side view partially in cross section on line 33 of Figure 2;

Figure 4 is a partial top view on line 4-4 of Figure 2;

Figure 5 is a partial front view on line 5-5 of Figure 3;

Figure 6 is a detail View partially in cross section of a foot board construction;

Figure 7 is a side view partially in cross section showing a foot board being smoothed under a sanding drum;

Figure 8 is a top plan view of the table top of the present invention showing the location of the saws; and

Figure 9 is a detail view on line 9-9 of Figure 8.

Referring in greater detail to the drawings, in which like numerals indicate like parts throughout the several views, the invention is seen to consist of a table 10 having a base frame 11 and supporting legs 12.

The table 10 has a front rail 13 and a back rail 14- each of them provided with a plurality of holes indicated by the reference numeral 15. A guide bar 16 extends from the front rail 13 to the back rail 14 and is made from a piece of angle iron. A first fixed slat 17 is positioned with each of its ends fastened to the rails 13 and 14, while the movable slats 18, 19 and 20 are secured by welding to the strips 21 and 22 at each end and are slidable upon the rails 13 and 14 as a unit.

,One of the slats 18 is illustrated in greater detail in 2,760,532 Patented Aug. 28, 1956 Figure 9 and is shown to be provided with a king pin 24, the head'of which is brazed, welded or press-fitted into the shit 18 and projecting from the underside. The king pin '24 cooperates with one of the holes whenever the slats 18 1 9 and are moved as a unit to the position indicated by 18', 19 and 20 shown in dotted lines in Figure 2.

A central rail 23 extends from theside edges of the table 10 to give support to the slats 18, 19 and 20, and also provides a support for the block 24 shown in Figure 3 which supports the upper end of a shaft 2 5. A bolt 26 supports the block 24 by means of either of the holes 27 or 27' as seen in Figures 3 and 9.

A saw blade 18 is secured to the upper end of each of the shafts 25, and is rotatable about a vertical axis.

At the back end of the table a pair of U-shaped support arms 29 support three sanding units each of them indicated by the reference numeral 30. The sanding units 30 are of the endless belt type, as seen most clearly in Figure 7, and have shields 31. t

The sanding units 30 constitute polishing or abrading elements of the resent invention and each of them includes a air of drums spaced from each other and having a belt 32. The drums 33 are each mounted upon a horizontally disposed shaft 34 which extends from one side or the table and carries a pulley 35. A belt 36 connects the ulley to another pulle 37 on the end of a main shaft 38 which is drivably onnected to a motor so b the short belt 40 as seen in Figures 1, 3 and 4.

The iriaiii shaft 38' is sup orted on the pulley blocks 41 and carries adjacent to the pulley 3') a bevel gear 42 whi h enga es a second bevel gear 43 on the shaft 25.

The blocks 41 are carried on a cross brace 44' which extends from one side of the table to the other, and at the end opposite to the bevel gears 42 and 43 a third block 45 supports afrar e 46 carrying a second set of bevel gears 47 and 4s; The other short 25 extends vertically from the bevel gear 37 to where it is connected to the otherot the saws 28: tnain shaft 38' has a removable section 49 do tachably secured between the couplings 50 and 51, as seen most clearly in Figure 4. The motor 39 is supported on a front to back brace 52.

In Figure 6 is shown a foot board of a bed stead 53 with a bed post 54 at each end which has been formed with a bore 55 into which a steel screw 56 has been screwed to hold the bed post 54 to the foot board 53. A dowel pin 57 has been inserted into the bore 55. It is the purpose of the present invention to provide a machine to remove the dowel pin 57 where it projects from the bed post 54 and to finish by abrading or sanding the top surface of the bed post adjacent to the dowel pin 5'? after the excess end of it has been cut off.

In operation each of the foot boards 53 is fed to the machine from the front end thereof and passes under the saws 28 which extend in spaced relation above the top of the table and which sever the dowel pin 57 where it projects from the bore 55, each of the foot boards then passing, as seen in Figure 7, under the endless belts which constitute the abrading elements and the posts are sanded for the full length as they extend and are removed from the back end of the machine.

Although it is shown here that a single motor has a drive for both of the wood working tools of the present invention, the saw and abrading element, separate drives could be provided if desired. As now arranged and here illustrated, the single motor 39 drives the horizontally disposed shaft 34 in the vertically disposed shafts 25. The one shaft 25 is movable with the slats 18, 19 and 20 to a position indicated in the dotted lines at 25 in Figure 2 for the purpose of having its saw blade 28 at the proper spaced distance on the top of the table in order to cut the dowel pin on a foot board of a single or twin-size-bed. the one saw blade 28 which is movable performs the same operation on the bed post and the dowel pin of a full-size bed.

While only a preferred embodiment of the present invention has been here shown and described, other embodiments may be made and practiced and many changes and modifications may be made within the scope of the appended claims without departing from the spirit of the invention.

What is claimed is:

1. In a wood working machine, a table including spaced sides, a back and a front end, means on the top of said table for supporting a foot board of a bed stead having bed posts extending transversely of the upper surface thereof, said means comprising a fixed slat positioned inwardly of one side of said table and extending from the front end of said table, and a plurality of spaced slats connected together as a unit positioned inwardly of the other side of said table and extending from the front end of said table, said slat unit being movable toward and away from said fixed slat, a horizontally disposed rotatable saw positioned above and spaced from the top of said table and carried by said slat unit intermediate the ends thereof, another horizontally disposedrotatable saw positioned above and spaced from, the top of said table along the side of said table adjacent said fixed slat, at least two abrading elements arranged in spaced relation along the back end of said table adjacent to and above the top, each of said elements being positioned so as to frictionally engage an adjacent strip surface after the strips have been moved past the respective saws.

2. In a wood working machine, a table including spaced sides, a back and front end, means on the top of said table for supporting a foot board of a bed stead having bed posts extending transversely of the upper surface In its original position,

thereof, said means comprising a fixed slat positioned inwardly of one side of said table and extending from the front end of said table and a plurality of spaced slats connected together as a unit positioned inwardly of the other side of said table and extending from the front end of said table, said slat unit being movable toward and v 4 away from said fixed slat, a horizontally disposed rotatable saw positioned above and spaced from said table and carried by said slat unit, another horizontally dis posed rotatable saw positioned above and spaced from the top of said table along the side of said table adjacent said fixed slat, at least two rotatable abrading elements arranged in spaced relation along the back end of said table adjacent to and above the top, each of said elementsbeing positioned so as to frictionally engage an adjacent bed post surface after the bed posts have been moved past the respective saws, and means for efiecting the rotation of said saws and said elements.

3. In a wood working machine,.a table including spaced sides, a back and a front end, means on the top of said table for supporting 'a foot board of a bed stead having bed posts extending transversely of the upper surface thereof, said means comprising a fixed slat positioned inwardly of one side of said table and extending from the frontend of said table and a plurality of spaced slats connected together as a unit positioned inwardly of the other side of said table and extending from the front end of said table, said slatunit being movable toward and away from said fixed slat, a saw rotatable about a vertical axis positioned above and spaced from the top of said table and carried by said slat unit, another saw rotatable about a vertical axis positioned above and spaced from the top of said table along the side of said table adjacent said fixed slat, at least two abrading elements rotatable about a horizontal axis and arranged in spaced relation along the back end of said table adjacent to and above the top, each of said elements being positioned so as to frictionally engage an adjacent bed post surface after the bed posts have been moved past the respective saws, and means connecting said vertical and said horizontal axes together for effecting rotation of said saws and said elements.

References Cited in the file of this patent UNITED STATES PATENTS 

